code: def __init__(self, name, sourcedir=""):
      Extension.__init__(self, name, sources=[])
      self.sourcedir = os.path.abspath(sourcedir)
  
imports: import os
  import re
  import sys
  import shutil
  import platform
  import subprocess
  import multiprocessing
  from distutils import log
  from math import ceil, floor
  from setuptools import find_packages, setup, Extension
  from setuptools.command.build_ext import build_ext
  from distutils.version import LooseVersion
  from setuptools.command.test import test
label_desc: Use image node_id 1 to create a new CMakeExtension object from inherited base classes: Extension with example: obj = CMakeExtension(name, sourcedir)